13155450512120 has 96 divisors (see below), whose sum is σ = 34435541761200. Its totient is φ = 4510025759232.

The previous prime is 13155450512027. The next prime is 13155450512131. The reversal of 13155450512120 is 2121505455131.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21419876 + ... + 22025484.

Almost surely, 2^{13155450512120} is an apocalyptic number.

13155450512120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155450512120 is an abundant number, since it is smaller than the sum of its proper divisors (21280091249080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155450512120 is a wasteful number, since it uses less digits than its factorization.

13155450512120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616717 (or 616706 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

Adding to 13155450512120 its reverse (2121505455131), we get a palindrome (15276955967251).

The spelling of 13155450512120 in words is "thirteen trillion, one hundred fifty-five billion, four hundred fifty million, five hundred twelve thousand, one hundred twenty".